Genus Ordovicidium
- Species total:
- 16
- Age range:
- 570 - 395 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Ordovicidium | Early Ordovician | Late Ordovician |
|
| Ordovicidium aequifurcatum | Middle Ordovician | Middle Ashgillian |
|
| Ordovicidium asperum | Early Ordovician | Early Ordovician |
|
| Ordovicidium clavatum | Late Caradocian | Ashgillian |
|
| Ordovicidium elegantulum | Early Paleozoic | Early Llandoverian |
|
| Ordovicidium fissum | Late Champlainian | Early Cincinnatian |
|
| Ordovicidium gracile | Late Ordovician | Late Ordovician |
|
| Ordovicidium groetlingboense | Early Paleozoic | Ashgillian |
|
| Ordovicidium heteromorphicum | Ordovician | Ashgillian |
|
| Ordovicidium majorfurcatum | Middle Ordovician | Middle Ordovician |
|
| Ordovicidium majorvesiculum | Middle Ordovician | Middle Ordovician |
|
| Ordovicidium nanofurcatum | Late Llandeilian | Late Llandeilian |
|
| Ordovicidium nudum | Ordovician | Ludlovian |
|
| Ordovicidium paucifurcatum | Early Caradocian | Early Caradocian |
|
| Ordovicidium sp | Tremadocian | Wenlockian |
|
| Ordovicidium yangtzeense | Arenigian | Ashgillian |
|